Oh la la - who would suspect such a thing

The Bouvier-Sauvage family looks back with pride on a long aristocratic lineage. When the only daughter announces her intention to marry the son of a simple Peugeot dealer, the reaction is far from enthusiastic. During the first meeting of the prospective in-laws, both sides quickly realize that they are separated not only by their preferences for wine and cars but by entirely different worlds. To make matters worse, the future couple has commissioned DNA tests that reveal more about the ancestry of those present. Oh la la, the mood is on the verge of turning sour, as the test results could potentially shatter some family trees and put the wedding in jeopardy.